Monolithic Integration of Printable PVDF‐TrFE Piezoelectric Multifunctional Devices: From Sensing to Actuation

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Abstract This study demonstrates the development of multifunctional printable piezoelectric actuators using PVDF‐TrFE and PEDOT:PSS, capable operating at low voltages supporting a wide range applications. By leveraging high coefficient conductivity exhibit stable performance with precise inkjet printing deposition optimized waveform parameters. The fabrication process integrates standard lithography, enabling monolithic integration for high‐performance actuation sensing. PVDF‐TrFE‐based achieve low‐voltage operation (as as 50 V), efficient energy transfer, mechanical stability. Enhancing beta phase resulted in deflection ≈600 µm vortex generation, crucial lift aerial robotic Durability tests confirmed minimal degradation after 2,300 cycles. Beyond deflection, sound detection strain sensing capabilities. Experimental evaluations validated their ability to differentiate frequencies, detect muscle strain, replicate bio‐inspired flight dynamics. A preliminary proof concept double‐wing structure demonstrated generation resonant frequencies. results indicate that these are well‐suited miniaturized applications, particularly locomotion sensing, opening new possibilities innovations micro‐robotics, wearables, robotics.

Language: Английский

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A quadruped micromanipulation robot driven by three-degree-of-freedom ultrasonic vibration legs

Device, Journal Year: 2024, Volume and Issue: unknown, P. 100620 - 100620

Published: Nov. 1, 2024

Language: Английский

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Piezo-actuated smart mechatronic systems for extreme scenarios

International Journal of Extreme Manufacturing, Journal Year: 2024, Volume and Issue: 7(2), P. 022003 - 022003

Published: Nov. 28, 2024

Abstract Precision actuation is a foundational technology in high-end equipment domains, where stroke, velocity, and accuracy are critical for processing and/or detection quality, precision spacecraft flight trajectories, weapon system strikes. Piezoelectric actuators (PEAs), known their nanometer-level precision, flexible resistance to electromagnetic interference, scalable structure, have been widely adopted across various fields. Therefore, this study focuses on extreme scenarios involving ultra-high (micrometer beyond), minuscule scales, highly complex operational conditions. It provides comprehensive overview of the types, working principles, advantages, disadvantages PEAs, along with potential applications piezo-actuated smart mechatronic systems (PSMSs). To address demands fields, we identified five representative application areas: positioning alignment, biomedical device configuration, advanced manufacturing processing, vibration mitigation, micro robot system. Each area further divided into specific subcategories, explore underlying relationships, mechanisms, schemes, characteristics. Finally, discuss challenges future development trends related PEAs PSMSs. This work aims showcase latest advancements provide valuable guidance researchers field.

Language: Английский

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Finite-time fractional-order sliding mode force control with time delay estimation and RBFNN compensation: Design and application to cell microinjection

Journal of the Franklin Institute, Journal Year: 2024, Volume and Issue: unknown, P. 107470 - 107470

Published: Dec. 1, 2024

Language: Английский

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